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Example for Preventing Instant Messaging Software

Example for Preventing Instant Messaging Software

Networking Requirements

As shown in Figure 11-4, a school lab connects to the
Internet through the Router as the gateway. Students are not allowed to use instant messaging
software such as QQ and MSN in the lab.

Figure 11-4 Networking for preventing instant messaging software

Configuration Roadmap

The configuration
roadmap is as follows:

Enable
deep security defense and load a signature file.

Configure a traffic classifier and define a matching rule based
on the Instant_Messaging protocol group. The Instant_Messaging protocol group defines commonly used Instant_Messaging software.

Configure a traffic behavior to deny Instant_Messaging packets.

Configure a traffic policy and bind the traffic classifier
and traffic behavior to the traffic policy.

Apply the traffic policy to the inbound direction of the WAN
interface.

Procedure

Enable
deep security defense and load a signature file.

<Huawei> system-view
[Huawei] sysname Router
[Router] engine enable

Configure a traffic classifier and define a matching rule
based on the Instant_Messaging protocol group.